matlab无解显示无解,求助MATLAB求解方程无解,其实作图可以明显知道有解的,但是运用SOLVE求解,结果是无解,感激不尽!...

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matlab无解显示无解,求助MATLAB求解方程无解,其实作图可以明显知道有解的,但是运用SOLVE求解,结果是无解,感激不尽!...

共回答了24个问题采纳率：79.2%

function fun=fun(afa)

m=16;

z=89;

rb=m*z*cos(20*pi/180)/2;

r=150;

fun=(rb*cos(afa)+rb*afa*sin(afa))^2+(r*[cos(10*pi/180)-sin(10*pi/180)*cot(10*pi/180+asin((r*sin(10*pi/180))/(r-rb*sin(afa)+rb*afa*cos(afa)))-10*pi/180)])^2-732*732;

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>> options=optimset('Display','iter'); % Option to display output

[x,fval] = fsolve(@fun,0.5,options) % Call optimizer

Norm of First-order Trust-region

Iteration Func-count f(x) step optimality radius

0 2 5.64433e+008 1.06e+010 1

1 4 1.59757e+006 0.053029 5.06e+008 1

2 6 20.0135 0.00315702 1.78e+006 1

3 8 3.24683e-009 1.12537e-005 22.7 1

4 10 0 1.43342e-010 0 1

Optimization terminated:first-order optimality is less than options.TolFun.

x =

0.4438

fval =

0

解就是0.4438

1年前

8